The platooning of automated vehicles has the potential of significantly enhancing the fuel efficiency of road transportation. This paper presents a periodic switching control method for an automated vehicle platoon to minimize the overall fuel consumption. Considering the nonlinearity of switching operation, the concept of bounded stability for a platoon of vehicles is defined to replace conventional internal stability and string stability. The distributed servo loop controller based on dual-pulse-and-glide operation is designed for each vehicle, wherein a sectionalized switching map is adopted for proper mode selection. It is proved that such a control method achieves bounded stability for the homogeneous platoon, with the range error of each follower being exactly confined within a predefined central region. The simulation validation shows that this method can save the overall fuel consumption up to 21.8% in comparison with conventional linear quadratic controllers. In addition, it also has desirable robustness with respect to the dynamical heterogeneity in the platoon, i.e., the deviation of intervehicle states from a predefined central region increases approximately linearly with respect to the growth of platoon heterogeneity.
Stabilizing Periodic Control of Automated Vehicle Platoon With Minimized Fuel Consumption
IEEE Transactions on Transportation Electrification ; 3 , 1 ; 259-271
2017-03-01
2197792 byte
Article (Journal)
Electronic Resource
English
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